This bug was originally marked as duplicate of bug 218872, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related.
Build: NetBeans IDE Dev (Build 201212210001)
VM: Java HotSpot(TM) Client VM, 20.0-b11, Java(TM) SE Runtime Environment, 1.6.0_25-b06
OS: Windows 7
Maximum slowness yet reported was 21382 ms, average is 21382
Created attachment 130034 [details]
fixed, change set:
- move perform in the RP thread
- fix file name method (because does not work in full remote mode)
Integrated into 'main-golden', will be available in build *201301100107* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress)
User: Alexander Simon <email@example.com>
Log: fixed Bug #224642 org.netbeans.modules.cnd.repository.sfs.BufferedRWAccess.read: LowPerformance took 21382 ms.